output
https://www.tutorialspoint.com/plsql/plsql_dbms_output.htm

? get_lines

set serveroutput on;

-- does not eq to above
-- DBMS_OUTPUT.ENABLE(buffer_size => NULL);

dbms_output.enable(1000000);
dbms_output.put_line('some message');


dbms_obfuscation_toolkit
https://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_obtool.htm#i1003449
select rawtohex(dbms_obfuscation_toolkit.md5(input_string=> 'ARUP')) from dual;
select id, name, type, rawtohex(dbms_obfuscation_toolkit.md5(input=> utl_raw.cast_to_raw(content))) from lin_ss.cb_shared_file_repository;


crypto
https://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_crypto.htm#BJFCGDIC